Machine for molding cores.



No. 840,737. I PATBNTED JAN. 8, 1907. U. G. AUGUSTINE.

MACHINE FR MOLDNG CORBS.

APPLIUAT'ION FILED sBrT.25,1`9o5.

- 3 SHEETS-SHEET 1.

@fifty PARENTED'JAN.' s, 1907.

U. G. AUGUSTINE. MACHINE POR MOLDING GORBS.-

APPLICATION FILED SEPT. 25.1905.

3 SHEETS-SHEET 2.

1HE Namzls PETERS co., WASHINGTON. n, c,

.PATENTED JAN.'8,1907. .l .'U.G. AUGUsT1NE.

MACHINE POB, MOLDING'GORBS. APPLICATION FILED SEPT. 25,1905.

a gums-SHEET '3.

Wbzesses:

1m: NoRRls PETERS ca., wAsHmaroN. D. c.

UNITED STATES PATENT OFFICE. l IILYSSES GRANT AUGUSTINE, OF LOS ANGELES, CALIFORNIA.

Specification of Letters Patent.

Patented Jan. s, 1907.

l Application iled September 25, 1905. Serial No. 280.180.

To @ZZ-whom it myconceru:

Beit known that I., ULYssEs GRANT AU- GUSTINE, a citizen of the United States, residing at the city of Los Angeles, in the county of Los Angeles and State of California, have invented certain new or Improved Machines for Molding Cores Used in the Manufacture of Cast-Metal Window-Weights, of which the following is a full, clear, and exact description or specification, reference being had to the annexed drawings and to the letters and figures marked thereon.

The object of my said invention is to provide means whereby large numbers of cores can be molded with the expenditure o`f a small amount of labor and time and by cheaply-constructed means to manufacture the cores used in the molds at that end of the molds for the cores wherein the hole is cast for connecting to a sash-cords, chain, or other exible connection to the window-sash.

As window-sash weights are manufactured and sold--in very large quantities and at a verysmall price, it has become essential in order to make a fair and reasonable profit on the manufacture oi' such weights to produce the same with a minimum of labor and expense, and by means of my present invention this object is accomplished.

Upon the annexed drawings, Figure l. is a plan of the core-molding machine constituting my present invention. Fig. 2 is a front' elevation of the same machine correspondingto Fig. 1. Fig. 3 is an elevation of the right# hand end of the' machine, on a larger scale, corresponding to Figs. 1 and 2.

Fig. 4 is a"v transverse section of the said machine, also on a larger scale, on the line a a, Figs. 1 and 2. Fig.` 5 is a side elevation (full size) of one of the cores constructed in the machine constituting my present invention. Fig. 6 is a plan oi' the circular endof Fig. 5 and Fig. 7 is an elevation of the same core, showing the narrow parts thereof.

In Figs. 1, 2, and 3 machine ismarked'A. At the rearwardl part of the upper portion of `the framing A the inclined board or equivalent surface B is firmly secured and supported by means of the vertical members C and by the board D, carried on the top of the framing A. Toward each end of the machine is a link, (marked E,) to the upper endl of each of which a lever F and F is respectively attached. The lower ends of the links `E are pivotally connected to the levers M, as more particularlyshown at Fig. 4.

the'main framing of the To the connecting-piece G on each lever F and F there is hinged thebarIfI, as shown more especially at Figs. 1, 2, 3, and 4. When the levers F and F are in their rearward po# sitionnnamely, the position shown in full lines in Fig. 3--then the bar II rests against the levers F and F as shown in Fig. 3, being suspended hingewise from the hinge connectingl pieces G thereon; but when the levers F and F are drawn forward, as shown in full lines 'in Figs. 1 and 2 and in dotted lines in Fig. 3,

then the bar H and its connected parts move into the vertical position by gravitational action and become vertically situated over the molds I I, which is formed in two portions and situated between the longitudinal por,-

tions constituting the front and rear of the molding-boxl J J.

` To the under side of the bar-H there are fastened, by means of Wood-screws K, one of `which is shown in Fig. 4, a series of cylindrical plugs L, which when the levers F and" F are pulled over and downwardl into the position shown at Figs. 1, 2, 3, 'and 4 enter the upper part of the corresponding molds, one` half of each of which is formed in the ont and rear of the molding-box J J. By depressing and applying the weight and-energy i of the 'poperator to the ends of the levers F and F these cylindricalplugs Il become depressed upon the mixture of sand Hand gluten I or other equivalent adhesive material, which is distributed into the molds the attendant, and the continued pressureof the attendant upon the leversF' and F causes the combined or mixed sand andgluten to be" very tightly compressed within the molds I I,

the commingled sand and gluten or its equiv y alent being thereby compelled to assume theI form of the interior of the molds I I-`-namely,i the form thereof shown in transverse section at Fig. 4 of the drawingsand in the enlarged views, Figs. 5, 6, and 7. At the same time that the downward pressure of the levers F and F causes the descent of the plugs L into the molds this pressure'raises the links E, at-

tached to the levers M, rbeneath the upper'- frame of the machine. The `front ends of the` levers M are pivoted to the centers or fixed bearings N, so that the downward pressure of the leversfF and F at their frontend causes the links E at their rear to pull upward the levers M, which being attached to the under mold-bar 0, as shown in Fig. 4, by the pivots O", push that mold-bar, together with the plugs O', which it carries, up against the under-part of the molds J J, thereby closing the bottom of the molds and finally compressing the mixture of sand and gluten or equivalent adhering material within each mold.

Simultaneously with the compression of' the mixture `of sand and gluten or equivalent adhesive material within the mold-box J J the bar P, which hangs down over the front of the machine, as shown at Fig. 3, is moved around upony its pivots P into the position shown at Fig. 4 by the hand of the operator. The bar P contains a series of perforators (Shown in Fig. 4 and in dotted lines in Figs. 1 and 2.) Each of the perforators Q is securely held in the horizontal moving bar P, and their front ends are immediately opposite the horizontal holes R in the mold-box J J and in such position that when the lever S is raised from its lowest position (shown in full lines in Fig. 3) to its highest position (shown by the dotted line S in said Fig. 3) this raising of the lever S upon its pivot causes theV bars S, one at each end of the machine and connected to the bar P, as shown in Figs. 1, 2, 3, and 4, to be pulled inward or in a rearward direction, so that each of the rods or fingers Q is forced through the narrow part of each core within each mold in the mold-box J J, by which action each bar or iinger Q forms a cylindrical hole in each core-` i After the several actions or movements oi the diiierentparts of t-he machine have been carried out in the manner hereinbeiore described and shown upon theannexed drawings then the levers F and F are pushed backward upon their pivots F into the position shown at Fig. ,3.4 This raises the bar H and the row of plugs L out of the moldingbox into the position shown in full lines at QFig. 3, and when the lever S is lowered to its lowest position, as shown at Figs. 3 and 4, the bar P, with the bars or-ingers Q, is thrown backward by the attendant into the position shown at Fig. 3. Then the two halves of the mold-box J J are SeparatedA by opening the clamps T and taking out they cross-pin T', (shown at Fig. 2,) in which condition the several cores contained within the molding-box are ready for being easily removed by the hand of the attendant or otherwise and for being hardened by baking or otherwise suitably'dried.

For the purpose of giving-vertical guidance to the bar H and the plugs L when descending into the top of the mold-box and molds J J the ends of the framing have carried thereon two guides of triangular form, (marked U and U/, respectively, in Figs. 1, 2. and 3,) the inner edges of which guides are vertical, as shown in the drawings, and at a short distance from each other, being so arranged that the narrow steel ends of the bar H may slide vertically upward and downward therein; i'

It is explained that the mold-box J J is divided longitudinally and vertically along its central plane and that the two halves J and J, respectively, are capable of being scparated from each other by releasing the central cross-pin T and the clamps T, in which condition the two halves of the box J J are easily separated from each other, the molds preferably made of Babbitt metal, taken out and replaced by other molds, which may be of any desired size corresponding to the diameter of sash weight cores to be molded. The said machine constituting my invention is capable of forming molds of the character herembefore described oi various and any required diameters.

Having now described the nature of my said invention and the best system, mode, or manner I am at present acquainted with for carrying the same into practical eiiect, I desire to observe in conclusion that what I consider to be novel and original, and therefore claim as the invention to be secured to me by Letters Patent, is as follows:

1. A machine for molding the cores used for forming the upper ends of window-sash weights,- and consisting of the mold-box containing molds held therein, means for horizontally Operating the molds, pins carried in a sliding bar for producing the holes through the upper and thinner-part of each core while in the mold, the upper bar carrying the lugs which compress the mixture of sand an( glutinous substance into the molds at the upper ends thereof, and the upwardly-movilw bar for compressing the mixture of sand and Ulutinous substance at the bottoms of the mods, the levers for operating the upper and under bars which carry the plugs on the upper molding-bar and the compressing-stri on the under molding-bar, also the levers, t 1e shaft on which said `evers are carried, and the connecting-links by which the bar carrying the pins is operated, all substantially as hereinbefore described.

2. A machine for molding the cores used for forming the upper ends of window-sash weights, and consisting of the mold-box containing molds held therein, means for horizontaly operating the molds, pins carried in a sliding bar for producing the holesthrourh the upper and thinner part of each core while in the mold, the upper bar carrying the lugs which compress the mixture of sand an glutinous substance into the molds at the upper ends thereof, and the upwardly-moving bar for compressing the mixture of sand and orlutinous substance at the bottoms ofthe molds, the levers for operating the upper and under bars which carry the plugs on the upper moldin -bar and the compressing-strip on the un er molding-bar, also the levers, thc shaft on which said levers are carried, and the connecting-links by which the bar carrying the pins is operated, the vertical guides IOO lIO

for receivingv the ends of the up er molding- GRANT AUGUSTINE, have hereunto set my ybau' which carries the molding-p ugs, and for hand and seal in the presence of tWo subguiding the said bar and the plugs vertically, sorbing Witnesses.

the f'amng in or by which the entire meohan- ULYSSES GRANT AUGUSTINE. [1..l s] 5 ism is carried substantially as herenbefore Wltnesses:

described. ST. JOHN DAY,

In testimony whereof I, the said ULYssEs J D. CORY. 

